Equations of Lines

Given that the slope is  -4 and the y intercept is -4 what is the equation of the line?

• y = 4x - 4
• y = -4x - 4
• y = -4
• y = -4x + 4

Identify the slope and y intercept in the equation of the line: y = -1/3x + 1

• Slope: 1/3
  y-intercept: 1
• Slope: 1/3
  y-intercept: -1
• Slope: -1/3
  y-intercept: 1
• Slope: -1/3
  y-intercept: 0

 Identify the slope-intercept equation:

• y = 2x - 2
• y = -2x + 2
• y = -2x + 4
• y = 2x + 4

Write an equation of the line in point slope form containing (-1,1) and (4,-9).

• y +1 = - 2(x - 1)

• y = -2x - 1

• y - 1 = - 2(x + 1)

• 2x + y = -1

Which of the following is the slope-intercept form?

• m = (y₂ - y₁)/(x₂ - x₁)

• y = mx + b

• y - y₁ = m(x - x₁)

• ax + by = c

Put this into standard form:

y = 3x + 2

• y + 3x = 2

• 3x + y = 2

• 3x - y = - 2

• 3x - 2y = 2

Write the standard form of the equation for the line:

y = 1/4 x + 4

• x + 4y = 8

• x - 4y = -16

• y = x + 16

• 4y + x = 8

Write the equation of the line with a slope of -3 and passing through the point (-1,4)

• y=3(x-1)+4

• y=4(x-3)+1

• y= -3(x-1)+4

• y= -3(x+1)+4

Write an equation of the line with a slope of 5 passing through the point (-2,-1)

• y=-2(x+1)+5

• y=5(x-2)+1

• y=-1(x+2)-1

• y=5(x+2)-1

What does "m" represent in y=mx+b?

• y-intercept
• slope
• macaroni
• nothing